Scientists are pretty sure that the Omicron covid variant is causing an increase in the number of covid reinfections in South Africa and is also overpowering the Delta variant to become the country's most dominant strain.

South Africa witnesses rise in covid reinfections

According to an observational study published in The Lancet Respiratory Medicine journal, a past COVID-19 infection does not completely protect young people from reinfection, and vaccination is still necessary to boost immune response and reduce disease transmission.

Study: Past COVID-19 infection does not fully protect against reinfection

A 25-year-old Reno man with mild COVID-19 symptoms initially was found to have the virus in April. He recovered and tested negative twice, and then tested positive again in June. He was much sicker the second time, with pneumonia that required hospitalisation and oxygen treatment.

US: Nevada man infected twice with COVID-19, HK researchers confirmed similar case

World's first case of Coronavirus reinfection has been found in Hong Kong. A 33-year-old man had a different strain of the Coronavirus than the one he was previously infected with in March.

COVID-19 reinfection: Hong Kong reports world's first 'proven' case

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